SONET, or "Synchronous Optical Network" is a standard for optical telecommunications transport formulated by the Exchange Carriers Standards Association (ECSA) for the American National Standards Institute (ANSI) in the mid-eighties, originally for use in the American public telephone network, ...

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How to find the start of a SONET frame? [closed]

When a SONET equipment is first connected to the network, how does the equipment find the start of the SONET frames it is receiving? I know that T-1 equipment is initially guessing where the framing ...
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Function of SOH, LOH, POH in SONET

Can anyone explain what is the function of section overhead, line overhead and path overhead in SONET STS-1 frame? Why they are used? Thanks, Neel
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ATM, why asynchronous?

hi i'm studing for a multimedia networks exams and i don't understand why ATM is asynchronous. i know that it is asyncrhonous if used with SONET but this makes no sense..